Automatic door-operating mechanism.



E. A. BAGHMANN.

AUTOMATIC noon OPBRATING'MBGHANISM.

APPLICATION FILED MAY 17, 1912.

Patented Apr. 8,

v 4 m 4 2 u a u w mm H u) mm/flhh mwmmmfi 0v k Q N JUN Gttowu,

5. A. BAGHMANN AUTOMATIC DOOR OPERATING MECHANISM.

APPLIOAIION FILED MAY 17, 1912.

1,058,286. Patented Apr. 8, 1913.

3 SHEETS-SHEET 2.

B A. BAGHMANNQ AUTOMATIC DOOR OPERATING MECHANISM.

APPLICATION FILED MAY 17, 1912.

$358,286. Patented Apr. 8, 1913.

coco I Z- NITE "ZD'WARD A. BACHMANN, OF FORT ATKINSON, WISCONSIN.

AUTOMATIC DOOR-OPERATING MECHANISM.

To all whom it may concern:

Be it known that I, EDWARD A. BACHMANN, a citizen of the United States,residing at Fort Atkinson, county of Jefi'erson, and State oflVisconsin, have invented new and useful Improvements in Automatic Door-Operating h Iechanism, of which the followmg is a specification.

- erence to the accompanying drawings, in

which- Figure 1 represents a vertical section of a portion of a garage,showing a side View of the mechanism through which motion iscommunicated from a moving vehicle to the doors of the building. Fig. 2is a front view of a garage, showing the doors closed in connection withthe door operating device, which device is diagrammatically shown, andFig.3 is a plan view of the device also shown in part diagrammatically.

Like parts are identified by the same reference numerals throughout theseveral views.

While my device is adapted to be used in connection with other classesof buildings and operated by the movement of other vehicles, for brevityof description the device is referred to as being adapted to be operatedby a moving automobile for opening and closing garage doors.

1 represents a portion of a garage and 2 represents the front doorswhich are adapted to be automatically opened and closed by the movementof an automobile. The doors 2 are adapted to be suspended from the track3 by hangers 4: of ordinary construction, which hangers are providedwith rollers 5 adapted to run backwardly and forwardly on said track assaid doors are opened and closed. The doors 2 are adapted to be drawnopen by the cables 6 which are preferably connected with the upper endsof said doors by the hangers 4, and extend Specification of LettersPatent.

Application filed May 17, 1912.

Fig. l by the moving the same.

ed with the side of the Patented Apr. 8, 1913. Serial No. 697,850.

from thence over the pulleys 7, 8, 9 and 10, and are connected at theiropposite ends with the front end 11 of the sliding carriage 12, whilesaid doors are adapted to be drawn toward each other in the positionshown in action of the cables 13, which cables 13 pass over the pulleys13 H, 15 and 1.6, and are connected at their opposite ends with theopposite end 17 of said carriage 12. Thus it will be obvious that as thecarriage 12 is moved toward the garage, said doors 2 will be thrownapart and opened, and while the carriage is moved in the oppositedirection, said doors will be closed. The carriage 12 is adapted to bemoved forwardly by an approaching automobile, one of the'axles of whichis adapted to contact with the vertical arm 18 of said carriage, andsaid vertical arm is retained ina vertical position so as to bebroughtinto contact with the axle of the automobile as the latterapproaches the same in either direction, by the engagement of the upperends of the dogs 19, 19 with the shoulders 20, 20 connected with thelower end of said being pivotally connected 12 by the bolt 21. When,however, the carriage 12 has been moved-forwardly by the automobile farenough to have caused the doors 2 to open, the front end of the bracket22 is adapted to contact .wit the lug 523 formed on one side of the reardog ,19, whereby said dog is thrown out of engagement with the opposingshoulder 20 0' said arm, when said arm is released and permit ted toturn rearwardly upon its pivot 21, whereby the automobile is free topass over the carriage 12 Without further When the automobilehas passedover the carriage 12, the arm 18 Will be drawn back to its verticalposition by the spiral springs 24, 24, which springs are connected atone of their ends with said arm, and at their opposite ends to the sideof the carriage 12. 'The dogs 19, 19 are normally retained in placeagainst the shoulders 20 by the spiral spring 25, the respective ends ofwhic spring are connected with said dogs respectively, said spring beingadapted by its recoil to bring the upper ends of said dogs toward eachother and against the upper sides of said shoulders.- Th lower ends ofsaid dogs 19 are pivotally connectcarriage 12 by the wit-h the carriagearm, the lower end of said arm ill supporting pivotal bolts 26, 26. 27is a'track upon which said carriage 12 is adapted to'move toward andfrom the garage.

It will now be understood that as an automobile app'roachesthe doors 2,said doors will be thrown apart through the mechanism described, wherebythe automobile is free to ass said doors 2, when the front 1 axle of tieautomobile is adapted to contact with roller bearings 31, 31 b tensionof said s rin s bein substantiall r P f g 3 t ti;

.original position. When 28 of the carriage uniform, whereby saistandard is normally retained, as shown, in a vertical position. Thelower end of said standard is rovided with a. air of laterallyprojecting s oulders 32, 32 or engagement with the upper ends at therespective dogs 33, 33, and said dogs are pivotally supported at theirlower ends from the sides of said carriage 29 on the pivotal bolts 34,34. It will now be understood that as the automobile is drawn into thegarage and against said vertical stand ard, as stated, said carriage 29will be carried forwardly by the movement of the automobile until thestationary bracket 35 is brought in contact with the lug 36 formed onone side of the rear dog 33, whereby the rear dog 33 will be thrown outof engagement with the rear shoulder 32, thereby releasing said verticalstandard 28 when the autagmobile will be free to pass over saidcarriage29 without further moving the same. As the carriage 29 is thus drawnrearwerdly by the action-of theautomobile, motion is communicatedtherefrom through the cables 3? and 13 to. the front edge of said doors,2, whereby said doors are drawn together and closed in rear of theautomobile, while by the same movement of said rabies 37 and 13 by whichsaid doors are drawn together, the carriage 12 will be drawn. back toits the automobile has thus passed over the vertical standard 29, saidstandard will be brought back to its vertical position by the recoil ofsaid spiral springs 24, when it will be retained in such position by theaction of the dogs 32, preparatory to sing acted u on againby themovement of the automo ile as the same is withdrawn from the garage. Asthe automobile is moved outwardly above the carriage 29, one of itsaxles is caused to contact with the front side carriage of the verticalstandard 28, whereby the carriage 29 is caused to move rearwardly againby the movement of the automobile,

and 'whereby movement is communicated from said carriage 29 to saiddoors 2 through the cables 38 and 6, which cables are connected withthe'outer edges of said doors, whereby said doors are separated andopened preparatory to permittin the automobile to pass from the garage.Vhen the carriage 29 has moved forwardly a short distance, the rear endof the bracket39 is brought in contact with the lug 40 formed upon oneside of the rear dog 33, whereby said dog 33 is brought out of enagement with the lugs 32 and whereby said vertical standard 28 is freeto be inclined forwardly, thus permitting the automobile to pass oversaid 29 and from thence out through the doors which have previously beenopened. By the forward movement of the carriage 29, last described,motion is communicated therefrom through the cables 38 and 6 to theother carriage 12, wherebysaid carriage12 is drawn toward the gara epreparatory to being again acted" upon y the moving automobile. As theautomobile moves outwardly over the carriage 12, the

front axle is again brought in contact with the opposite side of saidvertical standard 18, said standard being retained in a. rigid verticalposition in connection with said carriage 12 through the action of saiddogs as previously described, whereby said carriage will be caused tomove rearwardly with the automobile until the doors 2 have been againclosed When the doors 2' have been thus closed behind theautomobile, andthe carriage l2 hasbeen thus carried outwardly away from the garage, thebracket whereby said dog is brought out of engagement with the 0 positeshoulder 20 of said vertical standar when said standard is re- 38 iscaused to contact with the lug 39 formed upon one side of the front dog19,

leased and permitted to be inclined forwardl by the action of theautomobile axle,

where y the automobile is free to a ain pass over said carria e 12.Thusit wi 1 be obvious that by the orwardand backward movement of saidcarriages 12 and 29, said doors 2 are automatically 0 of the approachingautomo He and closed in rear of the same as it enters the garage. Alsothat said doors will be opened in front of the'automobile and'closed inrear of the same as it passes from the garage.

Having thus described myinvention,what I claim as new, anddesire tosecure'by Let- .ters Patent isk 1. 'In a device of the described class,the combination of a pair of slidable doors, a pair of reciprocatingcarriages, flexible con nections communicating between the respectiveends of said reciprocating carriages and ned in front I said doors,pivotall connected witheach 0 sad carriages, means connected with saidcarriages for normally retaining said standards in a vertical position,a carriage supporting track for each of said carria es, and meansconnected with said track or automatically releasingsaid verticalstandards as they approach the limit of their movement in eitherdirection.

2.' In a device of the described class, the combination of a' pair of.slidable doors, a pair of reciprocating carriages, a cable'connectedbetween one end 0 said carriages and one side of said doors, adapted assaid carriages are moved in one direction to open I zsaid doors and assaid carriages are moved in combination of the. opposite direction toclose the same, a standard pivotally connected with each of saidcarriages, means connected with said carriages for normally retainingsaid standards in a vertical position, a carriage supporting track foreach of said carriages, and means connected with said track forautomatically releasing said vertical standards as they approach thelimi of their movement in elt er direction.

3. In a device of the described class, the a pair of slidable doors, apair of reciprocating carriages, flexible co nections communicatingbetween the respective ends of said reciprocating carriages and saiddoors, whereby said doors are auto.-

supported standard matically opened and closed as 'said carriages aremoved toward and from the same, avertical standard pivotally connectedwith each of said carriages, means for automatically moving saidstandards to a vertical 0- sition, a pair of dogs pivot-ally connectedat their lower ends with each of said carriages and adapted to engage attheir upper ends against shoulders formed in connection with saidvertical standards, means for yieldingly retaining said do s in contactwith said shoulders, a track or each of said carriages, stationarybrackets connected with said tracks, said brackets being respectivelyadapted as said carriages are moved toward them, to contact with one ofsaid dogs, whereby said standards are automatically released-as'saidcarriages reach the limit of their movement the vehicle is free to passover saidgstandards and carriaes, and whereby said standards are adaptewhen released from contact of said vehicle, to be automatically restoredto their vertical position, all substantially as and for the purposespecified.

" In testimony whereof I afl'ix my signature in the presence of twowitnesses.

EDWARD A. BACHMANN.

Witnesses:

' JAs. B. ERWIN, I. D. BREMER.

in either direction, whereby

